144081642 has 16 divisors (see below), whose sum is σ = 288785952. Its totient is φ = 47923440.

The previous prime is 144081629. The next prime is 144081643. The reversal of 144081642 is 246180441.

It is a super-2 number, since 2×144081642² = 41519039122832328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144081643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22909 + ... + 28512.

It is an arithmetic number, because the mean of its divisors is an integer number (18049122).

Almost surely, 2^144081642 is an apocalyptic number.

144081642 is an abundant number, since it is smaller than the sum of its proper divisors (144704310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144081642 is a wasteful number, since it uses less digits than its factorization.

144081642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51893.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 144081642 is about 12003.4012679740. The cubic root of 144081642 is about 524.2473168722.

The spelling of 144081642 in words is "one hundred forty-four million, eighty-one thousand, six hundred forty-two".